Magnetic properties of sediments in cores from the Mandovi estuary, western India: Inferences on provenance and pollution
作者： A. Prajith , V. Purnachandra Rao , Pratima M. Kessarkar
DOI: 10.1016/J.MARPOLBUL.2015.07.034
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摘要: Magnetic properties of sediments were investigated in 7 gravity cores recovered along a transect the Mandovi estuary, western India to understand their provenance and pollution. The maximum magnetic susceptibility was at least 6 times higher upper/middle estuary than lower estuary/bay. χfd% χARM/SIRM indicated coarse, multi-domain pseudo-single domain grains, resembling ore material coarse stable single (SSD) fine SSD grains Mineralogy parameters hematite goethite-dominated magnetite-dominated Two sediment types discernible because deposition abundant detrital enrichment factor Index geo-accumulation metals significant strong pollution with respect Fe Mn from estuary.
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